FORCOM TECHNOLOGY CORPORATION 80486 DX/SX CACHE Processor 80486SX/80487SX/80486DX/80486DX2 Processor Speed 20/25/33/50i/66iMHz Chip Set ALI Max. Onboard DRAM 32MB Cache 128/256KB BIOS Award Dimensions 330mm x 218mm I/O Options Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA port NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Serial port 1 CN1 Speaker CN7 Serial port 2 CN2 Reset switch CN8 Parallel port CN3 Floppy drive interface CN9 VGA port CN4 IDE interface CN10 Power LED & keylock CN5 IDE interface LED JP8 Turbo switch & LED CN6 USER CONFIGURABLE SETTINGS Function Jumper Position » Monitor in interlace mode JP7 Closed Monitor in non-interlace mode JP7 Open » Monitor type select monochrome JP10 Closed Monitor type select color JP10 Open » CPU clock select 33MHz JP11 pins 2 & 3 closed CPU clock select 25MHz JP11 pins 1 & 2 closed VGA display enabled JP12 pins 2 & 3 closed VGA display disabled JP12 pins 1 & 2 closed VESA monitor enabled JP14 pins 1 & 2 closed VGA monitor enabled JP14 pins 2 & 3 closed DRAM CONFIGURATION Size Bank 0 Bank 3 1MB (4) 256K x 9 NONE 2MB (4) 256K x 9 (4) 256K x 9 4MB (4) 1M x 9 NONE 5MB (4) 256K x 9 (4) 1M x 9 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE 32MB (4) 4M x 9 (4) 4M x 9 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 128KB (4) 32K x 8 NONE (1) 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 BUS CLOCK CONFIGURATION OSC Clock JP3 JP6 32MHz pins 2 & 3 closed pins 2 & 3 closed 40MHz pins 2 & 3 closed pins 1 & 2 closed 50MHz pins 1 & 2 closed pins 2 & 3 closed 66MHz pins 1 & 2 closed pins 1 & 2 closed CPU TYPE CONFIGURATION CPU Type JP4 JP5 80486SX Open pins 1 & 2 closed 80487SX pins 1 & 2 closed pins 2 & 3 closed 80486DX pins 2 & 3 closed pins 2 & 3 closed 80486DX2 pins 2 & 3 closed pins 2 & 3 closed